From: Sulfur-doped carbon dots synthesis under microwave irradiation as turn-off fluorescent sensor for Cr(III)
Sample
Spiked concentration (μmol/L)
Measured concentration (μmol/L)
Recovery (%)
RSD (%)
Tap water
5.00
5.76
104.45
0.21
10.00
9.96
94.74
0.52
15.00
14.72
94.86
0.45
River water
5.59
106.20
0.20
9.62
93.68
0.74
15.05
98.65
0.32